Latest Articles from Acta Biologica Sibirica Latest 1 Articles from Acta Biologica Sibirica https://abs.pensoft.net/ Fri, 29 Mar 2024 06:37:36 +0200 Pensoft FeedCreator https://abs.pensoft.net/i/logo.jpg Latest Articles from Acta Biologica Sibirica https://abs.pensoft.net/ Effects of water levels on species diversity of silica-scaled chrysophytes in large tributaries of Lake Baikal https://abs.pensoft.net/article/52840/ Acta Biologica Sibirica 6: 11-32

DOI: 10.3897/abs.6.e52840

Authors: Anna Yu. Bessudova, Larisa M. Sorokovikova, Valery N. Sinyukovich, Alena D. Firsova, Irina V. Tomberg, Yelena V. Likhoshway

Abstract: Large tributaries of Lake Baikal considered as a “hotspot” for silica-scaled chrysophytes diversity. Here we presented the updated species composition of silica-scaled chrysophytes and ecological parameters of their habitat in the Barguzin and Selenga River tributaries and delta in a high water level period. The number of registered taxa was significantly lower compared to the low water conditions (23 versus 66 species) and included the following genera with a given number of species: Chrysosphaerella – 1; Paraphysomonas – 2; Clathromonas – 1; Spiniferomonas – 3; Mallomonas – 9; Synura – 7. Mallomonas guttata and Synura borealis were identified in Russian waters for the first time. Thus, the corrected total list of silica-scaled chrysophytes in the Baikal Region includes 79 taxa. Though, the high water level reduced the total number of silica-scaled chrysophyte taxa, it made the water ecosystem more dynamic by enriching it with the entirely new species for this region.

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